Home / 278,316.13-384,077-150,991.72

Finding the Fourth Proportional to 278,316.13, 384,077 and 150,991.72

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Solution

The fourth proportional to 278,316.13, 384,077 and 150,991.72 is: 208,368.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,316.13 : 384,077 = 150,991.72 : x
  2. Step 2: Convert to fraction form
    278,316.13/384,077 = 150,991.72/x
  3. Step 3: Cross multiply
    278,316.13x = 384,077 × 150,991.72
  4. Step 4: Simplify right side
    278,316.13x = 57,992,446,842.44
  5. Step 5: Solve for x
    x = 57,992,446,842.44/278,316.13
  6. Step 6: Final answer
    x = 208,368.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.